An image of the globular star cluster M80 (NGC 6093) made using the Hubble Space Telescope. M80 contains hundreds of thousands of stars and is one of 147 globular clusters known to be associated with the Milky Way. Credit: The Hubble Heritage Team / AURA / STScI / NASA

This stellar swarm is M80 (NGC 6093), one of the densest of the 147 known globular star clusters in the Milky Way galaxy. Located about 28, 000 light-years from Earth, M80 contains hundreds of thousands of stars...